Doctor profile · Federal record
Dr. Michael Callahan, PA-C
Physician Assistant · Saint Joseph, MI
- NPI 1891844148
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1234 Napier Ave
Saint Joseph, MI 490852112
(269) 983-8264
fax (269) 983-1238 - Mailing address
-
1426 Desmond St
Saint Joseph, MI 490859706
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Michigan #5601003934
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891844148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
80
Distinct HCPCS
2
Medicare allowed
$10,260
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 48 | 32 | $147 | |
99284 |
Emergency department visit with moderate level of medical decision making | 32 | 32 | $101 |
In context: peer comparison
Among 15 peers in Saint Joseph Physician Assistant, average services per provider: 79. This provider delivers 1.0× the peer median.Open Payments
Industry payments received
All-time total
$25
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 1 | $24.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
36
Patients
25
Total drug cost
$117
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 13 | $55 |
| Prednisone | Generic | 12 | 12 | $23 |
| Metoprolol Tartrate | Generic | 11 | 0 | $38 |
Frequently asked questions
What is Dr. Michael Callahan's medical specialty?
Dr. Michael Callahan practices Physician Assistant in Saint Joseph, MI.
Where does Dr. Michael Callahan practice?
Dr. Michael Callahan practices at 1234 Napier Ave, Saint Joseph, MI 490852112. Office phone: 2699838264.
What is Dr. Michael Callahan's NPI?
Dr. Michael Callahan's National Provider Identifier (NPI) is 1891844148, issued by NPPES.
Does Dr. Michael Callahan accept Medicare assignment?
Yes. Dr. Michael Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Callahan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.